elf_read_build_id  551 tools/perf/util/symbol-elf.c 	err = elf_read_build_id(elf, bf, size);
elf_read_build_id  755 tools/perf/util/symbol-elf.c 		if (elf_read_build_id(elf, build_id, BUILD_ID_SIZE) < 0) {